Campbell,Donald. (1995). Design and operation of smallholder irrigation in south Asia. World Bank.
Παραπομπή Chicago StyleCampbell,Donald. Design and Operation of Smallholder Irrigation in South Asia. Washington: World Bank, 1995.
Παραπομπή MLACampbell,Donald. Design and Operation of Smallholder Irrigation in South Asia. World Bank, 1995.
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